The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 1998
Filed:
Sep. 10, 1996
Applicant:
Inventors:
Assignee:
The Furukawa Electric Co.,Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385 94 ; 385 93 ; 385 33 ; 385 34 ; 385 35 ; 385 43 ;
Abstract
A semiconductor laser module comprising a lens system having first and second lenses for coupling a beam emitted from a semiconductor laser with a core expanded fiber having a single-mode fiber end whose core diameter is expanded. The core expanded fiber is set so as to have a core expansion coefficient of 1.3 or more and an absolute value of change rate of mode field diameter smaller than 6.0.times.10.sup.-4 .mu.m.sup.-1.
Aikiyo, Takeshi. (1998). Semiconductor laser module (U.S. Patent No. 5745625). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5745625
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